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ext.beginQueryEXT

The EXT_disjoint_timer_query.beginQueryEXT() method of the WebGL API starts a timer query.

void ext.beginQueryEXT(target, query);

target: A GLenum specifying the target of the time query. Must be ext.TIME_ELAPSED_EXT.
query: A WebGLQuery object for which to start the time querying.

None.

var ext = gl.getExtension('EXT_disjoint_timer_query');
var query = ext.createQueryEXT();
ext.beginQueryEXT(ext.TIME_ELAPSED_EXT, query);

// ...

Specification	Status	Comment
EXT_disjoint_timer_query The definition of 'EXT_disjoint_timer_query' in that specification.	Working Draft	Initial definition.

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	47 — 65 47 — 65 Removed due to the GLitch exploit.	No	51 — 63 51 — 63 Removed due to the GLitch exploit.	?	?	?

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	?	47 — 65 47 — 65 Removed due to the GLitch exploit.	No	No	?	?	5.0